2-Acetyl pyrrole's cas code is 1072-83-9.
2-Acetyl pyrazine's cas code is 22047-25-2.
2-Acetylfuran's cas code is 1192-62-7.
2-Acetylthiazole's cas code is 24295-03-2.
3-Methyl-2-butanethiol's cas code is 2084-18-6
3-Methylthiopropanol's cas code is 505-10-2.